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Chen XY, Zhou G, Zhang J. Optical coherence tomography: Promising imaging technique for the diagnosis of oral mucosal diseases. Oral Dis 2024; 30:3638-3651. [PMID: 38191786 DOI: 10.1111/odi.14851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/02/2023] [Accepted: 12/15/2023] [Indexed: 01/10/2024]
Abstract
OBJECTIVE This review aims to summarize the latest application of optical coherence tomography (OCT) in oral mucosal diseases, promoting an accurate and earlier diagnosis of such disorders, which are difficult to be differentiated. SUBJECTIVE AND METHODS References on the application of OCT in oral mucosal diseases were mainly obtained from PubMed, Embase, Web of Science and Scopus databases, using the keywords: "optical coherence tomography and 'oral mucosa/oral cancers/oral potentially malignant diseases/oral lichen planus/oral leukoplakia/oral erythroplakia/discoid lupus erythematosus/oral autoimmune bullous diseases/oral ulcers/erythema multiforme/oral mucositis'". RESULTS It is found that OCT is showing a promising application potential in the early detection, diagnosis, differential diagnosis, monitoring of oral cancer and oral dysplastic lesions, as well as the delineation of tumor margins. OCT is also playing an increasingly important role in the diagnosis of oral potentially malignant disorders, oral mucosal bullous diseases, oral ulcerative diseases, erythema multiforme, and the early detection of oral mucositis. CONCLUSION Optical coherence tomography, as a novel optical technique featured by real-time, noninvasive, dynamic and high-resolution imaging, is of great use to serve as an adjunct tool for the diagnosis, differential diagnosis, monitoring and therapy evaluation of oral mucosal diseases.
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Affiliation(s)
- Xu-Ya Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Gang Zhou
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jing Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China
- Department of Oral Medicine, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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2
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Wu X, Wang C, Gao W, Li R. Light-scattering-induced retardation as a high-sensitivity image contrast revealing collagen fibers. OPTICS LETTERS 2024; 49:3560-3563. [PMID: 38950209 DOI: 10.1364/ol.527957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 05/28/2024] [Indexed: 07/03/2024]
Abstract
Retardation induced by media can be used as an image contrast to depict the cumulative birefringent features and local variations of the sample, respectively. It is commonly assumed that the retardation is induced by the light propagation; however, the light scattering would generate the retardation as well. In our work, the scattering-induced retardation as a high-sensitivity image contrast for revealing collagen fibers is presented. First, it is shown that the retardation induced by fiber scattering is equal to π when modeled as cylinders. Using the data for the chicken breast and the palm measured by the polarization-sensitive optical coherence tomography system as an example, the scattering-induced retardation is calculated. The measured value of π is in complete agreement with the theory, and the corresponding retardation per unit distance is two orders of magnitude greater than the light-propagation-induced retardation, demonstrating its predominant role on the overall retardation and providing a possibility for highly sensitive displays. Compared with the accumulated retardation image and the differential retardation image, the scattering-induced retardation images could exhibit sharper fiber structures even in deeper regions. This work might be helpful for the early diagnosis of collagen-related diseases.
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3
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Moon W, Feng X, Li GY, Yun SH. High-Frequency Optical Coherence Elastography for Gingival Tissue Characterization: Variability in Stiffness and Response to Physiological Conditions. Biomater Res 2024; 28:0044. [PMID: 38952715 PMCID: PMC11214824 DOI: 10.34133/bmr.0044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 05/08/2024] [Indexed: 07/03/2024] Open
Abstract
Accurate measurement of gingiva's biomechanical properties in vivo has been an active field of research but remained an unmet challenge. Currently, there are no noninvasive tools that can accurately quantify tensile and shear moduli, which govern gingival health, with sufficiently high accuracy. This study presents the application of high-frequency optical coherence elastography (OCE) for characterizing gingival tissue in both porcine models and human subjects. Dynamic mechanical analysis, histology studies, and strain analysis are performed to support the OCE result. Our findings demonstrate substantial differences in tissue stiffness between supra-dental and inter-dental gingiva, validated by dynamic mechanical analysis and OCE. We confirmed the viscoelastic, nearly linear, and transverse-isotropic properties of gingiva in situ, establishing the reliability of OCE measurements. Further, we investigated the effects of tissue hydration, collagen degradation, and dehydration on gingival stiffness. These conditions showed a decrease and increase in stiffness, respectively. While preliminary, our study suggests OCE's potential in periodontal diagnosis and oral tissue engineering, offering real-time, millimeter-scale resolution assessments of tissue stiffness, crucial for clinical applications and biomaterial optimization in reconstructive surgeries.
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Affiliation(s)
- Wonjoon Moon
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Xu Feng
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Guo-Yang Li
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine,
Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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4
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Hackmann MJ, Cairncross A, Elliot JG, Mulrennan S, Nilsen K, Thompson BR, Li Q, Karnowski K, Sampson DD, McLaughlin RA, Cense B, James AL, Noble PB. Quantification of smooth muscle in human airways by polarization-sensitive optical coherence tomography requires correction for perichondrium. Am J Physiol Lung Cell Mol Physiol 2024; 326:L393-L408. [PMID: 38261720 DOI: 10.1152/ajplung.00254.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 12/05/2023] [Accepted: 01/12/2024] [Indexed: 01/25/2024] Open
Abstract
Quantifying airway smooth muscle (ASM) in patients with asthma raises the possibility of improved and personalized disease management. Endobronchial polarization-sensitive optical coherence tomography (PS-OCT) is a promising quantitative imaging approach that is in the early stages of clinical translation. To date, only animal tissues have been used to assess the accuracy of PS-OCT to quantify absolute (rather than relative) ASM in cross sections with directly matched histological cross sections as validation. We report the use of whole fresh human and pig airways to perform a detailed side-by-side qualitative and quantitative validation of PS-OCT against gold-standard histology. We matched and quantified 120 sections from five human and seven pig (small and large) airways and linked PS-OCT signatures of ASM to the tissue structural appearance in histology. Notably, we found that human cartilage perichondrium can share with ASM the properties of birefringence and circumferential alignment of fibers, making it a significant confounder for ASM detection. Measurements not corrected for perichondrium overestimated ASM content several-fold (P < 0.001, paired t test). After careful exclusion of perichondrium, we found a strong positive correlation (r = 0.96, P < 0.00001) of ASM area measured by PS-OCT and histology, supporting the method's application in human subjects. Matching human histology further indicated that PS-OCT allows conclusions on the intralayer composition and in turn potential contractile capacity of ASM bands. Together these results form a reliable basis for future clinical studies.NEW & NOTEWORTHY Polarization-sensitive optical coherence tomography (PS-OCT) may facilitate in vivo measurement of airway smooth muscle (ASM). We present a quantitative validation correlating absolute ASM area from PS-OCT to directly matched histological cross sections using human tissue. A major confounder for ASM quantification was observed and resolved: fibrous perichondrium surrounding hyaline cartilage in human airways presents a PS-OCT signature similar to ASM for birefringence and optic axis orientation. Findings impact the development of automated methods for ASM segmentation.
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Affiliation(s)
- Michael J Hackmann
- School of Human Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Crawley, Western Australia, Australia
| | - Alvenia Cairncross
- School of Human Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia
| | - John G Elliot
- School of Human Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia
| | - Siobhain Mulrennan
- Department of Respiratory Medicine, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
- Institute of Respiratory Health, The University of Western Australia, Crawley, Western Australia, Australia
- Medical School, The University of Western Australia, Crawley, Western Australia, Australia
| | - Kris Nilsen
- Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Bruce R Thompson
- Melbourne School of Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Qingyun Li
- Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Crawley, Western Australia, Australia
| | - Karol Karnowski
- Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Crawley, Western Australia, Australia
- International Centre for Translational Eye Research, Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - David D Sampson
- School of Computer Science and Electronic Engineering, University of Surrey, Guildford, United Kingdom
| | - Robert A McLaughlin
- Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Crawley, Western Australia, Australia
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, South Australia, Australia
| | - Barry Cense
- Department of Electrical, Electronic, and Computer Engineering, The University of Western Australia, Crawley, Western Australia, Australia
- Department of Mechanical Engineering, Yonsei University, Seoul, South Korea
| | - Alan L James
- Department of Pulmonary Physiology and Sleep Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia
- Medical School, The University of Western Australia, Crawley, Western Australia, Australia
| | - Peter B Noble
- School of Human Sciences, The University of Western Australia, Crawley, Western Australia, Australia
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Haj-Hosseini N, Lindblad J, Hasséus B, Kumar VV, Subramaniam N, Hirsch JM. Early Detection of Oral Potentially Malignant Disorders: A Review on Prospective Screening Methods with Regard to Global Challenges. J Maxillofac Oral Surg 2024; 23:23-32. [PMID: 38312957 PMCID: PMC10831018 DOI: 10.1007/s12663-022-01710-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 03/10/2022] [Indexed: 11/28/2022] Open
Abstract
Oral cancer is a cancer type that is widely prevalent in low-and middle-income countries with a high mortality rate, and poor quality of life for patients after treatment. Early treatment of cancer increases patient survival, improves quality of life and results in less morbidity and a better prognosis. To reach this goal, early detection of malignancies using technologies that can be used in remote and low resource areas is desirable. Such technologies should be affordable, accurate, and easy to use and interpret. This review surveys different technologies that have the potentials of implementation in primary health and general dental practice, considering global perspectives and with a focus on the population in India, where oral cancer is highly prevalent. The technologies reviewed include both sample-based methods, such as saliva and blood analysis and brush biopsy, and more direct screening of the oral cavity including fluorescence, Raman techniques, and optical coherence tomography. Digitalisation, followed by automated artificial intelligence based analysis, are key elements in facilitating wide access to these technologies, to non-specialist personnel and in rural areas, increasing quality and objectivity of the analysis while simultaneously reducing the labour and need for highly trained specialists.
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Affiliation(s)
- Neda Haj-Hosseini
- Department of Biomedical Engineering, Linköping University, Linköping, Sweden
- Centre for Medical Image Science and Visualization, Linköping University, Linköping, Sweden
| | - Joakim Lindblad
- Centre for Image Analysis, Department of Information Technology, Uppsala University, Uppsala, Sweden
| | - Bengt Hasséus
- Department of Oral Medicine and Pathology, Institute of Odontology, University of Gothenburg, The Sahlgrenska Academy, Gothenburg, Sweden
- Clinic of Oral Medicine, Public Dental Service, Gothenburg, Region Västra Götaland Sweden
| | - Vinay Vijaya Kumar
- Department of Head and Neck Oncology, Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
- Department of Surgical Sciences, Odontology and Maxillofacial Surgery, Medical Faculty, Uppsala University, Uppsala, Sweden
| | - Narayana Subramaniam
- Department of Head and Neck Oncology, Sri Shankara Cancer Hospital and Research Centre, Bangalore, India
| | - Jan-Michaél Hirsch
- Department of Surgical Sciences, Odontology and Maxillofacial Surgery, Medical Faculty, Uppsala University, Uppsala, Sweden
- Department of Research & Development, Public Dental Services Region Stockholm, Stockholm, Sweden
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6
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Mann P, Thapa P, Nayyar V, Surya V, Mishra D, Mehta DS. Multispectral polarization microscopy of different stages of human oral tissue: A polarization study. JOURNAL OF BIOPHOTONICS 2024; 17:e202300236. [PMID: 37789505 DOI: 10.1002/jbio.202300236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/05/2023]
Abstract
Many optical techniques have been used in various diagnostics and biomedical applications since a decade and polarization imaging is one of the non-invasive and label free optical technique to investigate biological samples making it an important tool in diagnostics, biomedical applications. We report a multispectral polarization-based imaging of oral tissue by utilizing a polarization microscope system with a broadband-light source. Experiments were performed on oral tissue samples and multispectral Stokes mapping was done by recording a set of intensity images. Polarization-based parameters like degree of polarization, angle of fast axis, retardation and linear birefringence have been retrieved. The statistical moments of these polarization components have also been reported at multiples wavelengths. The polarimetric properties of oral tissue at different stages of cancer have been analyzed and significant changes from normal to pre-cancerous lesions to the cancerous are observed in linear birefringence quantification as (1.7 ± 0.1) × 10-3 , (2.5 ± 0.2) × 10-3 and (3.3 ± 0.2) × 10-3 respectively.
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Affiliation(s)
- Priyanka Mann
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, India
| | - Pramila Thapa
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, India
| | - Vivek Nayyar
- Department of Oral Pathology and Microbiology, Centre for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - Varun Surya
- Department of Oral Pathology and Microbiology, Centre for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - Deepika Mishra
- Department of Oral Pathology and Microbiology, Centre for Dental Education & Research, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - Dalip Singh Mehta
- Bio-photonics and Green-photonics Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi, India
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7
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Steuer S, Morgenstern J, Kirsten L, Bornitz M, Neudert M, Koch E, Golde J. In vivo microstructural investigation of the human tympanic membrane by endoscopic polarization-sensitive optical coherence tomography. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:121203. [PMID: 37007626 PMCID: PMC10050973 DOI: 10.1117/1.jbo.28.12.121203] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
SIGNIFICANCE Endoscopic optical coherence tomography (OCT) is of growing interest for in vivo diagnostics of the tympanic membrane (TM) and the middle ear but generally lacks a tissue-specific contrast. AIM To assess the collagen fiber layer within the in vivo TM, an endoscopic imaging method utilizing the polarization changes induced by the birefringent connective tissue was developed. APPROACH An endoscopic swept-source OCT setup was redesigned and extended by a polarization-diverse balanced detection unit. Polarization-sensitive OCT (PS-OCT) data were visualized by a differential Stokes-based processing and the derived local retardation. The left and right ears of a healthy volunteer were examined. RESULTS Distinct retardation signals in the annulus region of the TM and near the umbo revealed the layered structure of the TM. Due to the TM's conical shape and orientation in the ear canal, high incident angles onto the TM's surface, and low thicknesses compared to the axial resolution limit of the system, other regions of the TM were more difficult to evaluate. CONCLUSIONS The use of endoscopic PS-OCT is feasible to differentiate birefringent and nonbirefringent tissue of the human TM in vivo. Further investigations on healthy as well as pathologically altered TMs are required to validate the diagnostic potential of this technique.
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Affiliation(s)
- Svea Steuer
- TU Dresden, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Dresden, Germany
- TU Dresden, Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, Faculty of Medicine, Dresden, Germany
| | - Joseph Morgenstern
- TU Dresden, Otorhinolaryngology, Ear Research Center Dresden, Faculty of Medicine, Dresden, Germany
- TU Dresden, Else Kröner-Fresenius Center for Digital Health, Dresden, Germany
| | - Lars Kirsten
- TU Dresden, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Dresden, Germany
| | - Matthias Bornitz
- TU Dresden, Otorhinolaryngology, Ear Research Center Dresden, Faculty of Medicine, Dresden, Germany
| | - Marcus Neudert
- TU Dresden, Otorhinolaryngology, Ear Research Center Dresden, Faculty of Medicine, Dresden, Germany
- TU Dresden, Else Kröner-Fresenius Center for Digital Health, Dresden, Germany
| | - Edmund Koch
- TU Dresden, Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, Faculty of Medicine, Dresden, Germany
- TU Dresden, Else Kröner-Fresenius Center for Digital Health, Dresden, Germany
| | - Jonas Golde
- TU Dresden, Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Dresden, Germany
- TU Dresden, Else Kröner-Fresenius Center for Digital Health, Dresden, Germany
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8
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Chang S, Giannico GA, Haugen E, Jardaneh A, Baba J, Mahadevan-Jansen A, Chang SS, Bowden AK. Multiparameter interferometric polarization-enhanced imaging differentiates carcinoma in situ from inflammation of the bladder: an ex vivo study. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:102907. [PMID: 37576611 PMCID: PMC10415042 DOI: 10.1117/1.jbo.28.10.102907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/15/2023]
Abstract
Significance Successful differentiation of carcinoma in situ (CIS) from inflammation in the bladder is key to preventing unnecessary biopsies and enabling accurate therapeutic decisions. Current standard-of-care diagnostic imaging techniques lack the specificity needed to differentiate these states, leading to false positives. Aim We introduce multiparameter interferometric polarization-enhanced (MultiPIPE) imaging as a promising technology to improve the specificity of detection for better biopsy guidance and clinical outcomes. Approach In this ex vivo study, we extract tissue attenuation-coefficient-based and birefringence-based parameters from MultiPIPE imaging data, collected with a bench-top system, to develop a classifier for the differentiation of benign and CIS tissues. We also analyze morphological features from second harmonic generation imaging and histology slides and perform imaging-to-morphology correlation analysis. Results MultiPIPE enhances specificity to differentiate CIS from benign tissues by nearly 20% and reduces the false-positive rate by more than four-fold over clinical standards. We also show that the MultiPIPE measurements correlate well with changes in morphological features in histological assessments. Conclusions The results of our study show the promise of MultiPIPE imaging to be used for better differentiation of bladder inflammation from flat tumors, leading to a fewer number of unnecessary procedures and shorter operating room (OR) time.
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Affiliation(s)
- Shuang Chang
- Vannderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Giovanna A. Giannico
- Vanderbilt University Medical Center, Department of Pathology, Microbiology, and Immunology, Nashville, Tennessee, United States
| | - Ezekiel Haugen
- Vannderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Ali Jardaneh
- Vanderbilt University Medical Center, Department of Urology, Nashville, Tennessee, United States
| | - Justin Baba
- Vannderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Anita Mahadevan-Jansen
- Vannderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Sam S. Chang
- Vanderbilt University Medical Center, Department of Urology, Nashville, Tennessee, United States
| | - Audrey K. Bowden
- Vannderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
- Vanderbilt University, Department of Electrical and Computer Engineering, Nashville, Tennessee, United States
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9
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He Y, Li K, Li W, Qiu Y, Li D, Wang C, Tang Q, Li Z. Polarization coherency matrix tomography. JOURNAL OF BIOPHOTONICS 2023; 16:e202300093. [PMID: 37269135 DOI: 10.1002/jbio.202300093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/10/2023] [Accepted: 05/31/2023] [Indexed: 06/04/2023]
Abstract
In this paper, a polarization-sensitive optical coherence tomography (PS-OCT) based polarization coherency matrix tomography (PCMT) combining polarization coherency matrix with Mueller matrix is proposed for the determination of complete polarization properties of tissue. PCMT measures the Jones matrix of biological sample based on similar transformation, in which four elements have initial random phase from different polarization states based on traditional PS-OCT. The results indicate that PCMT can eliminate the phase difference of incident lights with different polarization states. In addition, the polarization coherency matrix using three polarization states has complete information of the sample Jones matrix. Finally, the 16 elements of the sample Mueller matrix are applied for deriving fully polarized optical properties of the sample based on the elliptical diattenuator and the elliptical retarder. Thus, the method based on the PCM and Mueller matrix has the advantage over the traditional PS-OCT.
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Affiliation(s)
- Youwu He
- Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, Fujian, China
| | - Ke Li
- Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, Fujian, China
| | - Wangbiao Li
- Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, Fujian, China
| | - Yishen Qiu
- Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, Fujian, China
| | - Dezi Li
- Key Laboratory of Intelligent Control Technology for Wuling-Mountain Ecological Agriculture in Hunan Province, Huaihua University, Huaihua, Hunan, China
| | - Chen Wang
- The Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Qinggong Tang
- The Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Zhifang Li
- Key Laboratory of Optoelectronic Science and Technology for Medicine, Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou, Fujian, China
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10
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Gruda Y, Albrecht M, Buckova M, Haim D, Lauer G, Koch E, Joehrens K, Schnabel C, Golde J, Li J, McLaughlin RA, Walther J. Characteristics of Clinically Classified Oral Lichen Planus in Optical Coherence Tomography: A Descriptive Case-Series Study. Diagnostics (Basel) 2023; 13:2642. [PMID: 37627901 PMCID: PMC10453426 DOI: 10.3390/diagnostics13162642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
Malignant transformation of oral lichen planus (OLP) into oral squamous cell carcinoma is considered as one of the most serious complications of OLP. For the early detection of oral cancer in OLP follow-up, accurate localization of the OLP center is still difficult but often required for confirmatory biopsy with histopathological examination. Optical coherence tomography (OCT) offers the potential for more reliable biopsy sampling in the oral cavity as it is capable of non-invasively imaging the degenerated oral layer structure. In this case-series study with 15 patients, features of clinically classified forms of OLP in OCT cross-sections were registered and correlated with available histologic sections. Besides patients with reticular, atrophic, erosive and plaque-like OLP, two patients with leukoplakia were included for differentiation. The results show that OCT yields information about the epithelial surface, thickness and reflectivity, as well as the identifiability of the basement membrane and the vessel network, which could be used to complement the visual clinical appearance of OLP variants and allow a more accurate localization of the OLP center. This forms the basis for further studies on OCT-assisted non-invasive clinical classification of OLP, with the aim of enabling decision support for biopsy sampling in the future.
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Affiliation(s)
- Yuliia Gruda
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
| | - Marius Albrecht
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
- Carl Gustav Carus Faculty of Medicine, Institute of Pathology, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Michaela Buckova
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Dominik Haim
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Guenter Lauer
- Carl Gustav Carus Faculty of Medicine, Clinic and Policlinic of Oral- and Maxillofacial Surgery, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (M.B.); (D.H.); (G.L.)
| | - Edmund Koch
- Carl Gustav Carus Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Korinna Joehrens
- Carl Gustav Carus Faculty of Medicine, Institute of Pathology, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Christian Schnabel
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
- Carl Gustav Carus Faculty of Medicine, Department of Anesthesiology and Intensive Care Medicine, Clinical Sensoring and Monitoring, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany;
| | - Jonas Golde
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
| | - Jiawen Li
- Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide 5005, Australia;
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide 5005, Australia;
| | - Robert A. McLaughlin
- Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide 5005, Australia;
- Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide 5005, Australia
| | - Julia Walther
- Carl Gustav Carus Faculty of Medicine, Department of Medical Physics and Biomedical Engineering, TU Dresden, Fetscherstraße 74, 01307 Dresden, Germany; (Y.G.); (M.A.); (C.S.); (J.G.)
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11
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Yang S, Yu X, Zhang Y, Li X, Yu J, Li Y, Xie Z. Focusing through scattering media by a single polarization transmission matrix with binary polarization modulation. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA. A, OPTICS, IMAGE SCIENCE, AND VISION 2023; 40:898-903. [PMID: 37133186 DOI: 10.1364/josaa.482076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Wavefront distortion induced by scattering media seriously affects optical focusing. Wavefront shaping based on a transmission matrix (TM) is useful in controlling light propagation in highly scattering media. Traditional TM generally studies amplitude and phase, but the stochastic nature of the light propagation in the scattering medium also affects its polarization. Based on the binary polarization modulation, we propose a single polarization transmission matrix (SPTM) and achieve single-spot focusing through scattering media. We anticipate that the SPTM will be widely used in wavefront shaping.
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12
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Anjani AK, Saragih GR, Wihadmadyatami H, Kusindarta DL. Lingual morphology of domesticated Asian small-clawed otters in Yogyakarta, Indonesia. VET MED-CZECH 2023; 68:91-105. [PMID: 37981903 PMCID: PMC10581529 DOI: 10.17221/62/2022-vetmed] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 01/16/2023] [Indexed: 11/21/2023] Open
Abstract
This study aimed to observe the lingual morphology of the domesticated Asian small-clawed otter, Aonyx cinereus (A. cinereus), from Yogyakarta, Indonesia. Six domesticated A. cinereus adults were obtained from a local otter breeder in Yogyakarta, with no regard to sex. The animals were acclimated to the laboratory for one day, following this, the animals underwent macroscopy identification and scanning electron microscopy (SEM) and light microscopy (LM) analysis. Macroscopically, the tongue of domesticated A. cinereus is divided into three parts: the apex, corpus, and radix. The apex is the shortest part and can move freely. A median groove is bent along the corpus. Typically, the radix contains circumvallate papillae and the epiglottic valleculae. The SEM and LM observations revealed that the lingual morphology of A. cinereus consisted of two types of papillae: mechanical papillae (horny filiform, leaf-like filiform, bifid filiform, trifid filiform, elongated leaf-like filiform, triangular filiform and conical papillae) and gustatory papillae (fungiform and circumvallate papillae). The lingual glands consisted of Weber's glands and von Ebner's glands secreting acid and neutral mucins. Collagen fibres are found in the lamina propria and muscular layer. In conclusion, the papillae of the Asian short-clawed otter have the same structure as those of other Mustelidae family members.
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Affiliation(s)
- Angelina Kusuma Anjani
- Department of Anatomy, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Golda Rani Saragih
- Department of Anatomy, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Hevi Wihadmadyatami
- Department of Anatomy, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Dwi Liliek Kusindarta
- Department of Anatomy, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
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13
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Nelson MS, Liu Y, Wilson HM, Li B, Rosado-Mendez IM, Rogers JD, Block WF, Eliceiri KW. Multiscale Label-Free Imaging of Fibrillar Collagen in the Tumor Microenvironment. Methods Mol Biol 2023; 2614:187-235. [PMID: 36587127 DOI: 10.1007/978-1-0716-2914-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
With recent advances in cancer therapeutics, there is a great need for improved imaging methods for characterizing cancer onset and progression in a quantitative and actionable way. Collagen, the most abundant extracellular matrix protein in the tumor microenvironment (and the body in general), plays a multifaceted role, both hindering and promoting cancer invasion and progression. Collagen deposition can defend the tumor with immunosuppressive effects, while aligned collagen fiber structures can enable tumor cell migration, aiding invasion and metastasis. Given the complex role of collagen fiber organization and topology, imaging has been a tool of choice to characterize these changes on multiple spatial scales, from the organ and tumor scale to cellular and subcellular level. Macroscale density already aids in the detection and diagnosis of solid cancers, but progress is being made to integrate finer microscale features into the process. Here we review imaging modalities ranging from optical methods of second harmonic generation (SHG), polarized light microscopy (PLM), and optical coherence tomography (OCT) to the medical imaging approaches of ultrasound and magnetic resonance imaging (MRI). These methods have enabled scientists and clinicians to better understand the impact collagen structure has on the tumor environment, at both the bulk scale (density) and microscale (fibrillar structure) levels. We focus on imaging methods with the potential to both examine the collagen structure in as natural a state as possible and still be clinically amenable, with an emphasis on label-free strategies, exploiting intrinsic optical properties of collagen fibers.
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Affiliation(s)
- Michael S Nelson
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Yuming Liu
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, USA
| | - Helen M Wilson
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Bin Li
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA.,Morgridge Institute for Research, Madison, WI, USA
| | - Ivan M Rosado-Mendez
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Jeremy D Rogers
- Morgridge Institute for Research, Madison, WI, USA.,McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, WI, USA
| | - Walter F Block
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Kevin W Eliceiri
- Center for Quantitative Cell Imaging, University of Wisconsin-Madison, Madison, WI, USA. .,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA. .,Morgridge Institute for Research, Madison, WI, USA. .,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA. .,McPherson Eye Research Institute, University of Wisconsin-Madison, Madison, WI, USA.
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14
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Le N, Lu J, Tang P, Chung KH, Subhash H, Kilpatrick-Liverman L, Wang RK. Intraoral optical coherence tomography and angiography combined with autofluorescence for dental assessment. BIOMEDICAL OPTICS EXPRESS 2022; 13:3629-3646. [PMID: 35781964 PMCID: PMC9208603 DOI: 10.1364/boe.460575] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/20/2022] [Accepted: 05/21/2022] [Indexed: 05/11/2023]
Abstract
There remains a clinical need for an accurate and non-invasive imaging tool for intraoral evaluation of dental conditions. Optical coherence tomography (OCT) is a potential candidate to meet this need, but the design of current OCT systems limits their utility in the intraoral examinations. The inclusion of light-induced autofluorescence (LIAF) can expedite the image collection process and provides a large field of view for viewing the condition of oral tissues. This study describes a novel LIAF-OCT system equipped with a handheld probe designed for intraoral examination of microstructural (via OCT) and microvascular information (via OCT angiography, OCTA). The handheld probe is optimized for use in clinical studies, maintaining the ability to detect and image changes in the condition of oral tissue (e.g., hard tissue damage, presence of dental restorations, plaque, and tooth stains). The real-time LIAF provides guidance for OCT imaging to achieve a field of view of approximately 6.9 mm × 7.8 mm, and a penetration depth of 1.5 mm to 3 mm depending on the scattering property of the target oral tissue. We demonstrate that the proposed system is successful in capturing reliable depth-resolved images from occlusal and palatal surfaces and offers added design features that can enhance its usability in clinical settings.
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Affiliation(s)
- Nhan Le
- Department of Bioengineering,
University of Washington, Seattle, WA
98195, USA
- These authors contributed equally to this
work
| | - Jie Lu
- Department of Bioengineering,
University of Washington, Seattle, WA
98195, USA
- These authors contributed equally to this
work
| | - Peijun Tang
- Department of Bioengineering,
University of Washington, Seattle, WA
98195, USA
| | - Kwok-Hung Chung
- Department of Restorative Dentistry,
University of Washington, Seattle, WA
98195, USA
| | | | | | - Ruikang K. Wang
- Department of Bioengineering,
University of Washington, Seattle, WA
98195, USA
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15
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Oral Cancer Screening by Artificial Intelligence-Oriented Interpretation of Optical Coherence Tomography Images. Radiol Res Pract 2022; 2022:1614838. [PMID: 35502299 PMCID: PMC9056242 DOI: 10.1155/2022/1614838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/23/2022] [Accepted: 04/11/2022] [Indexed: 11/29/2022] Open
Abstract
Early diagnosis of oral cancer is critical to improve the survival rate of patients. The current strategies for screening of patients for oral premalignant and malignant lesions unfortunately miss a significant number of involved patients. Optical coherence tomography (OCT) is an optical imaging modality that has been widely investigated in the field of oncology for identification of cancerous entities. Since the interpretation of OCT images requires professional training and OCT images contain information that cannot be inferred visually, artificial intelligence (AI) with trained algorithms has the ability to quantify visually undetectable variations, thus overcoming the barriers that have postponed the involvement of OCT in the process of screening of oral neoplastic lesions. This literature review aimed to highlight the features of precancerous and cancerous oral lesions on OCT images and specify how AI can assist in screening and diagnosis of such pathologies.
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16
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Abstract
Cross-polarized optical coherence tomography offers improved contrast for samples which can alter the polarization of light when it interacts with the sample. This property has been utilized to screen pathological conditions in several organs. Existing cross-polarized optical coherence tomography systems require several polarization-controlling elements to minimize the optical fiber movement-related image artifacts. In this work, we demonstrate a cross-polarized optical coherence tomography system using unpolarized light and only two quarter-wave plates, which is free from fiber-induced image artifacts. The simplicity of the approach will find many applications in clinical settings.
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17
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Chang S, Handwerker J, Giannico GA, Chang SS, Bowden AK. Birefringent tissue-mimicking phantom for polarization-sensitive optical coherence tomography imaging. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:JBO-210279SSR. [PMID: 35064658 PMCID: PMC8781524 DOI: 10.1117/1.jbo.27.7.074711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
SIGNIFICANCE Tissue birefringence is an important parameter to consider when designing realistic, tissue-mimicking phantoms. Options for suitable birefringent materials that can be used to accurately represent tissue scattering are limited. AIM To introduce a method of fabricating birefringent tissue phantoms with a commonly used material-polydimethylsiloxane (PDMS)-for imaging with polarization-sensitive optical coherence tomography (PS-OCT). APPROACH Stretch-induced birefringence was characterized in PDMS phantoms made with varying curing ratios, and the resulting phantom birefringence values were compared with those of biological tissues. RESULTS We showed that, with induced birefringence levels up to 2.1 × 10 - 4, PDMS can be used to resemble the birefringence levels in weakly birefringent tissues. We demonstrated the use of PDMS in the development of phantoms to mimic the normal and diseased bladder wall layers, which can be differentiated by their birefringence levels. CONCLUSIONS PDMS allows accurate control of tissue scattering and thickness, and it exhibits controllable birefringent properties. The use of PDMS as a birefringent phantom material can be extended to other birefringence imaging systems beyond PS-OCT and to mimic other organs.
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Affiliation(s)
- Shuang Chang
- Vanderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Jessica Handwerker
- Vanderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
| | - Giovanna A. Giannico
- Vanderbilt University Medical Center, Department of Pathology, Microbiology, and Immunology, Nashville, Tennessee, United States
| | - Sam S. Chang
- Vanderbilt University Medical Center, Department of Urology, Nashville, Tennessee, United States
| | - Audrey K. Bowden
- Vanderbilt University, Vanderbilt Biophotonics Center, Department of Biomedical Engineering, Nashville, Tennessee, United States
- Vanderbilt University, Department of Electrical and Computer Engineering, Nashville, Tennessee, United States
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18
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Tang P, Kirby MA, Le N, Li Y, Zeinstra N, Lu GN, Murry CE, Zheng Y, Wang RK. Polarization sensitive optical coherence tomography with single input for imaging depth-resolved collagen organizations. LIGHT, SCIENCE & APPLICATIONS 2021; 10:237. [PMID: 34819490 PMCID: PMC8613400 DOI: 10.1038/s41377-021-00679-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 05/02/2023]
Abstract
Collagen organization plays an important role in maintaining structural integrity and determining tissue function. Polarization-sensitive optical coherence tomography (PSOCT) is a promising noninvasive three-dimensional imaging tool for mapping collagen organization in vivo. While PSOCT systems with multiple polarization inputs have demonstrated the ability to visualize depth-resolved collagen organization, systems, which use a single input polarization state have not yet demonstrated sufficient reconstruction quality. Herein we describe a PSOCT based polarization state transmission model that reveals the depth-dependent polarization state evolution of light backscattered within a birefringent sample. Based on this model, we propose a polarization state tracing method that relies on a discrete differential geometric analysis of the evolution of the polarization state in depth along the Poincare sphere for depth-resolved birefringent imaging using only one single input polarization state. We demonstrate the ability of this method to visualize depth-resolved myocardial architecture in both healthy and infarcted rodent hearts (ex vivo) and collagen structures responsible for skin tension lines at various anatomical locations on the face of a healthy human volunteer (in vivo).
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Affiliation(s)
- Peijun Tang
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Mitchell A Kirby
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Nhan Le
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Yuandong Li
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - Nicole Zeinstra
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
| | - G Nina Lu
- Department of Otolaryngology- Head and Neck Surgery, Facial Plastic and Reconstructive Surgery, University of Washington, Seattle, WA, 98195, USA
| | - Charles E Murry
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
- Department of Pathology, University of Washington, Seattle, WA, 98109, USA
- Center for Cardiovascular Biology, University of Washington, Seattle, WA, 98109, USA
- Institute for Stem Cell & Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Ying Zheng
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA
- Institute for Stem Cell & Regenerative Medicine, University of Washington, Seattle, WA, 98109, USA
| | - Ruikang K Wang
- Department of Bioengineering, University of Washington, 3720 15th Ave NE, Seattle, WA, 98195, USA.
- Department of Ophthalmology, University of Washington, Seattle, WA, 98105, USA.
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19
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Lane C, Rode D, Rösgen T. Two-dimensional birefringence measurement technique using a polarization camera. APPLIED OPTICS 2021; 60:8435-8444. [PMID: 34612943 DOI: 10.1364/ao.433066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
A two-dimensional birefringence measurement method is described. In this procedure, we send light through a rotatable linear polarizer and subsequently through a transparent and birefringent specimen. A polarization camera measures the state of linear polarization from which the relative position of the refractive index axes and the relative phase difference is determined. The measurement range of the phase difference is up to π rad, which corresponds to an optical retardation of half the wavelength of the light. The imaging system can measure a large sample area within one measurement cycle. Measurement performance is demonstrated with a quarter-wave plate, and an exemplary test case is shown.
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20
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Jannasch A, Schnabel C, Galli R, Faak S, Büttner P, Dittfeld C, Tugtekin SM, Koch E, Matschke K. Optical coherence tomography and multiphoton microscopy offer new options for the quantification of fibrotic aortic valve disease in ApoE -/- mice. Sci Rep 2021; 11:5834. [PMID: 33712671 PMCID: PMC7955095 DOI: 10.1038/s41598-021-85142-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/25/2021] [Indexed: 01/31/2023] Open
Abstract
Aortic valve sclerosis is characterized as the thickening of the aortic valve without obstruction of the left ventricular outflow. It has a prevalence of 30% in people over 65 years old. Aortic valve sclerosis represents a cardiovascular risk marker because it may progress to moderate or severe aortic valve stenosis. Thus, the early recognition and management of aortic valve sclerosis are of cardinal importance. We examined the aortic valve geometry and structure from healthy C57Bl6 wild type and age-matched hyperlipidemic ApoE-/- mice with aortic valve sclerosis using optical coherence tomography (OCT) and multiphoton microscopy (MPM) and compared results with histological analyses. Early fibrotic thickening, especially in the tip region of the native aortic valve leaflets from the ApoE-/- mice, was detectable in a precise spatial resolution using OCT. Evaluation of the second harmonic generation signal using MPM demonstrated that collagen content decreased in all aortic valve leaflet regions in the ApoE-/- mice. Lipid droplets and cholesterol crystals were detected using coherent anti-Stokes Raman scattering in the tissue from the ApoE-/- mice. Here, we demonstrated that OCT and MPM, which are fast and precise contactless imaging approaches, are suitable for defining early morphological and structural alterations of sclerotic murine aortic valves.
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Affiliation(s)
- Anett Jannasch
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstraße 76, 01307, Dresden, Germany.
| | - Christian Schnabel
- Department of Anesthesiology and Intensive Care Medicine and Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Roberta Galli
- Department of Anesthesiology and Intensive Care Medicine and Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Saskia Faak
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstraße 76, 01307, Dresden, Germany
| | - Petra Büttner
- Department of Cardiology, Heart Center Leipzig At University Leipzig, Leipzig, Germany
| | - Claudia Dittfeld
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstraße 76, 01307, Dresden, Germany
| | - Sems Malte Tugtekin
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstraße 76, 01307, Dresden, Germany
| | - Edmund Koch
- Department of Anesthesiology and Intensive Care Medicine and Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Klaus Matschke
- Department of Cardiac Surgery, Carl Gustav Carus Faculty of Medicine, Technische Universität Dresden, Heart Centre Dresden, Fetscherstraße 76, 01307, Dresden, Germany
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21
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Nawn D, Pratiher S, Chattoraj S, Chakraborty D, Pal M, Paul RR, Dutta S, Chatterjee J. Multifractal Alterations in Oral Sub-Epithelial Connective Tissue During Progression of Pre-Cancer and Cancer. IEEE J Biomed Health Inform 2021; 25:152-162. [PMID: 32750913 DOI: 10.1109/jbhi.2020.2997875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Bright-field microscopy (BFM) encrypts the optical transillumination profile of the transmitted light attenuated by the complex micro-structural tissue convolutions, manifested by the dense and compact regions of the specimen under examination. The connotations of idiosyncratic tissue interaction dynamics with the onset of pre-cancerous activity are encoded in the BFM acquired oral mucosa histopathological images (OMHI). In the present study, our analysis is focused on the sub-epithelium region of the oral mucosa, which has high clinical significance but sparsely explored in the literature from the textural domain. Histopathology being the gold-standard technique till date, we have used the light microscopic histopathology images for tissue characterization. The tissue-index transmission patches (TITP) from the sub-epithelium region are cropped under the guidance of oral onco-pathologists. After that, the TITPs are characterized for its multi-scale spatial-deformation dynamics, while keeping the intrinsic anisotropic geometry, and local contour connectivity within tolerable limits. With recent studies exhibiting multifractal's potency in diverse biological system analysis, here, we exploit the 2D multifractal detrended fluctuation analysis (2D-MFDFA) on TITPs for exploring a discriminative set of multifractal signatures for healthy, oral potentially malignant disorders and oral cancer tissue sample. The predictive model's competency is validated on an experimentally collected corpus of TITP samples and substantiated via confirmatory data statistics and analysis, showing its inter-class segregation efficacy. Moreover, the 2D-MFDFA analysis evinces the complex multifractal patterns in TITPs, which is due to the presence of composite long-range correlations in the oral mucosa tissue fabric.
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22
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Vincent P, Bruza P, Palisoul SM, Gunn JR, Samkoe KS, Hoopes PJ, Hasan T, Pogue BW. Visualization and quantification of pancreatic tumor stroma in fresh tissue via ultraviolet surface excitation. JOURNAL OF BIOMEDICAL OPTICS 2021; 26:JBO-200312R. [PMID: 33423407 PMCID: PMC7850982 DOI: 10.1117/1.jbo.26.1.016002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/11/2020] [Indexed: 05/11/2023]
Abstract
SIGNIFICANCE The study has confirmed the feasibility of using ultraviolet (UV) excitation to visualize and quantify desmoplasia in fresh tumor tissue of pancreatic adenocarcinoma (PDAC) in an orthotopic xenograft mouse model, which provides a useful imaging platform to evaluate acute therapeutic responses. AIM Stromal network of collagen prominent in PDAC tumors is examined by imaging fresh tissue samples stained with histological dyes. Fluorescence signals are color-transferred to mimic Masson's trichrome staining. APPROACH Murine tumor samples were stained with Hoechst, eosin, and rhodamine B and excited at 275-nm. Fluorescence signals in the visible spectrum were captured by a CMOS color camera with high contrast and resolution at whole-tumor slice field of view. RESULTS Fluorescence imaging using UV excitation is capable of visualizing collagen deposition in PDAC tumors. Both fluorescence and histology data showed collagen content of up to 30%. The collagen modulation effect due to photodynamic priming treatment was observed showing 13% of collagen reduction. Necrosis area is visible and perfusion imaging using Texas Red dextran is feasible. CONCLUSIONS The study demonstrates collagen visualization in fresh PDAC tumor samples using UV excitation. This imaging platform also provides quantitative stromal information from fiber analysis and visibility of necrosis and perfusion, suitable for therapeutic response assessment of photodynamic therapy.
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Affiliation(s)
- Phuong Vincent
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
- Address all correspondence to Phuong Vincent,
| | - Petr Bruza
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
| | - Scott M. Palisoul
- Dartmouth-Hitchock Pathology Shared Resource Lab, Lebanon, New Hampshire, United States
| | - Jason R. Gunn
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
| | - Kimberley S. Samkoe
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
| | - P. Jack Hoopes
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
- Geisel School of Medicine, Department of Surgery, Hanover, New Hampshire, United States
| | - Tayyaba Hasan
- Harvard Medical School, Wellman Center for Photomedicine, Boston, Massachusetts, United States
| | - Brian W. Pogue
- Dartmouth College, Thayer School of Engineering, Hanover, New Hampshire, United States
- Geisel School of Medicine, Department of Surgery, Hanover, New Hampshire, United States
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23
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Albrecht M, Schnabel C, Mueller J, Golde J, Koch E, Walther J. In Vivo Endoscopic Optical Coherence Tomography of the Healthy Human Oral Mucosa: Qualitative and Quantitative Image Analysis. Diagnostics (Basel) 2020; 10:E827. [PMID: 33076312 PMCID: PMC7602587 DOI: 10.3390/diagnostics10100827] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/08/2020] [Accepted: 10/10/2020] [Indexed: 12/18/2022] Open
Abstract
To date, there is still a lack of reliable imaging modalities to improve the quality of consultation, diagnostic and medical examinations of the oral mucosa in dentistry. Even though, optical technologies have become an important element for the detection and treatment of different diseases of soft tissue, for the case of oral screenings the evidence of the benefit in comparison to conventional histopathology is mostly still pending. One promising optical technology for oral diagnostics is optical coherence tomography (OCT). To prove the potential of OCT, even the amount of freely accessible OCT data is not sufficient to describe the variance of healthy human oral soft tissue in vivo. In order to remedy this deficiency, the present study provides in vivo OCT cross sections of the human oral mucosa of the anterior and posterior oral cavity as well as the oropharynx of 47 adult volunteers. A collection of representative OCT cross sections forms the basis for a randomized blinded image analysis by means of seven criteria to assess the main features of the superficial layers of the human oral mucosa and to determine its correlation to regional features known from hematoxylin and eosin (HE) stained histology.
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Affiliation(s)
- Marius Albrecht
- Department of Medical Physics and Biomedical Engineering, Technische Universitaet Dresden, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (M.A.); (C.S.)
| | - Christian Schnabel
- Department of Medical Physics and Biomedical Engineering, Technische Universitaet Dresden, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (M.A.); (C.S.)
- Department of Anesthesiology and Intensive Care Medicine, Technische Universität Dresden, Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (J.M.); (J.G.); (E.K.)
| | - Juliane Mueller
- Department of Anesthesiology and Intensive Care Medicine, Technische Universität Dresden, Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (J.M.); (J.G.); (E.K.)
| | - Jonas Golde
- Department of Anesthesiology and Intensive Care Medicine, Technische Universität Dresden, Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (J.M.); (J.G.); (E.K.)
| | - Edmund Koch
- Department of Anesthesiology and Intensive Care Medicine, Technische Universität Dresden, Clinical Sensoring and Monitoring, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (J.M.); (J.G.); (E.K.)
| | - Julia Walther
- Department of Medical Physics and Biomedical Engineering, Technische Universitaet Dresden, Carl Gustav Carus Faculty of Medicine, Fetscherstraße 74, 01307 Dresden, Germany; (M.A.); (C.S.)
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24
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McLean JP, Fang S, Gallos G, Myers KM, Hendon CP. Three-dimensional collagen fiber mapping and tractography of human uterine tissue using OCT. BIOMEDICAL OPTICS EXPRESS 2020; 11:5518-5541. [PMID: 33149968 PMCID: PMC7587264 DOI: 10.1364/boe.397041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/23/2020] [Accepted: 07/30/2020] [Indexed: 05/10/2023]
Abstract
Automatic quantification and visualization of 3-D collagen fiber architecture using Optical Coherence Tomography (OCT) has previously relied on polarization information and/or prior knowledge of tissue-specific fiber architecture. This study explores image processing, enhancement, segmentation, and detection algorithms to map 3-D collagen fiber architecture from OCT images alone. 3-D fiber mapping, histogram analysis, and 3-D tractography revealed fiber groupings and macro-organization previously unseen in uterine tissue samples. We applied our method on centimeter-scale mosaic OCT volumes of uterine tissue blocks from pregnant and non-pregnant specimens revealing a complex, patient-specific network of fibrous collagen and myocyte bundles.
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Affiliation(s)
- James P. McLean
- Department of Electrical Engineering, Columbia University, New York, NY 10027, USA
| | - Shuyang Fang
- Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA
| | - George Gallos
- Department of Anesthesiology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Kristin M. Myers
- Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA
| | - Christine P. Hendon
- Department of Electrical Engineering, Columbia University, New York, NY 10027, USA
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25
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Gong P, Li Q, Wang Q, Karnowski K, Sampson DD. Jones matrix-based speckle-decorrelation angiography using polarization-sensitive optical coherence tomography. JOURNAL OF BIOPHOTONICS 2020; 13:e202000007. [PMID: 32418315 DOI: 10.1002/jbio.202000007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 04/19/2020] [Accepted: 05/13/2020] [Indexed: 05/18/2023]
Abstract
We show that polarization-sensitive optical coherence tomography angiography (PS-OCTA) based on full Jones matrix assessment of speckle decorrelation offers improved contrast and depth of vessel imaging over conventional OCTA. We determine how best to combine the individual Jones matrix elements and compare the resulting image quality to that of a conventional OCT scanner by co-locating and imaging the same skin locations with closely matched scanning setups. Vessel projection images from finger and forearm skin demonstrate the benefits of Jones matrix-based PS-OCTA. Our study provides a promising starting point and a useful reference for future pre-clinical and clinical applications of Jones matrix-based PS-OCTA.
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Affiliation(s)
- Peijun Gong
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA, Australia
| | - Qingyun Li
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA, Australia
| | - Qiang Wang
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA, Australia
| | - Karol Karnowski
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA, Australia
- Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | - David D Sampson
- Surrey Biophotonics, Advanced Technology Institute and School of Biosciences and Medicine, University of Surrey, Surrey, UK
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26
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Li Q, Sampson DD, Villiger M. In vivo imaging of the depth-resolved optic axis of birefringence in human skin. OPTICS LETTERS 2020; 45:4919-4922. [PMID: 32870890 PMCID: PMC7535952 DOI: 10.1364/ol.400855] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/29/2020] [Indexed: 05/18/2023]
Abstract
Recent progress has enabled the reconstruction of the local (i.e., depth-resolved) optic axis (OAx) of biological tissue from measurements made with polarization-sensitive optical coherence tomography (PS-OCT). Here we demonstrate local OAx imaging in healthy human skin in vivo. The images reveal dense, weaving patterns that are imperceptible in OCT intensity tomograms or conventional PS-OCT metrics and that suggest a mesh-like tissue organization, consistent with the morphology of dermal collagen. Using co-registered polarization-sensitive optical coherence microscopy, we furthermore investigated the impact of spatial resolution on the recovered OAx patterns and confirmed their consistency. OAx orientation as a contrast mechanism merits further exploration for applications in dermatology.
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Affiliation(s)
- Qingyun Li
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
- Corresponding author:
| | - David D. Sampson
- Surrey Biophotonics, Advanced Technology Institute, School of Physics, and School of Biosciences and Medicine, University of Surrey, Guildford, Surrey GU2 7XH, UK
- These authors share senior authorship equally
| | - Martin Villiger
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA, USA
- These authors share senior authorship equally
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27
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Karnowski K, Li Q, Poudyal A, Villiger M, Farah CS, Sampson DD. Influence of tissue fixation on depth-resolved birefringence of oral cavity tissue samples. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:JBO-200071R. [PMID: 32914607 PMCID: PMC7481436 DOI: 10.1117/1.jbo.25.9.096003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/29/2020] [Indexed: 06/11/2023]
Abstract
SIGNIFICANCE To advance our understanding of the contrast observed when imaging with polarization-sensitive optical coherence tomography (PS-OCT) and its correlation with oral cancerous pathologies, a detailed comparison with histology provided via ex vivo fixed tissue is required. The effects of tissue fixation, however, on such polarization-based contrast have not yet been investigated. AIM A study was performed to assess the impact of tissue fixation on depth-resolved (i.e., local) birefringence measured with PS-OCT. APPROACH A PS-OCT system based on depth-encoded polarization multiplexing and polarization-diverse detection was used to measure the Jones matrix of a sample. A wide variety of ex vivo samples were measured freshly after excision and 24 h after fixation, consistent with standard pathology. Some samples were also measured 48 h after fixation. RESULTS The tissue fixation does not diminish the birefringence contrast. Statistically significant changes were observed in 11 out of 12 samples; these changes represented an increase in contrast, overall, by 11% on average. CONCLUSIONS We conclude that the fixed samples are suitable for studies seeking a deeper understanding of birefringence contrast in oral tissue pathology. The enhancement of contrast removes the need to image immediately postexcision and will facilitate future investigations with PS-OCT and other advanced polarization-sensitive microscopy methods, such as mapping of the local optic axis with PS-OCT and PS-optical coherence microscopy.
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Affiliation(s)
- Karol Karnowski
- The University of Western Australia, Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic, and Computer Engineering, Perth, Western Australia, Australia
- Polish Academy of Sciences, Institute of Physical Chemistry, Warsaw, Poland
| | - Qingyun Li
- The University of Western Australia, Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic, and Computer Engineering, Perth, Western Australia, Australia
| | - Anima Poudyal
- The University of Western Australia, UWA Dental School, Perth, Western Australia, Australia
| | - Martin Villiger
- Harvard Medical School, Massachusetts General Hospital, Wellman Center for Photomedicine, Boston, Massachusetts, United Sates
| | - Camile S. Farah
- The University of Western Australia, UWA Dental School, Perth, Western Australia, Australia
- Australian Centre for Oral Oncology Research and Education, Perth, Western Australia, Australia
- Fiona Stanley Hospital, Oral, Maxillofacial, and Dental Surgery, Murdoch, Western Australia, Australia
| | - David D. Sampson
- University of Surrey, Surrey Biophotonics, School of Physics, Guilford, United Kingdom
- University of Surrey, Surrey Biophotonics, School of Biosciences and Medicine, Guilford, United Kingdom
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28
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Detection of Oral Dysplastic and Early Cancerous Lesions by Polarization-Sensitive Optical Coherence Tomography. Cancers (Basel) 2020; 12:cancers12092376. [PMID: 32842568 PMCID: PMC7564531 DOI: 10.3390/cancers12092376] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 12/16/2022] Open
Abstract
Detection of oral dysplastic and early-stage cancerous lesions is difficult with the current tools. Half of oral cancers are diagnosed in a late stage. Detection of early stromal change to predict malignant transformation is a new direction in the diagnosis of early-stage oral cancer. The application of new optical tools to image stroma in vivo is under investigation, and polarization-sensitive optical coherence tomography (PS-OCT) is potentially one of those tools. This is a preliminary study to sequentially image oral stromal changes from normal, hyperplasia, and dysplasia to early-stage cancer by PS-OCT in vivo. We used 4-Nitroquinoline-1-oxide drinking water to induce dysplasia and early-stage oral cancer in 19 K14-EGFP-miR-211-GFP transgenic mice. A total of 8 normal, 12 hyperplastic, 11 dysplastic, and 4 early-stage cancerous lesions were enrolled. A new analytic process of PS-OCT imaging was proposed, called an en-face birefringence map. From the birefringence map, the sensitivity, specificity, positive predictive value, and negative predictive values to detect dysplasia and early-stage cancer were 100.00%, 95.00%, 93.75%, and 100.00%, respectively, and the kappa value of these images between two investigators was 0.942. The mean size of malignant lesions detected in this study is 1.66 ± 0.93 mm. This pilot animal study validates the use of PS-OCT to detect small and early-stage oral malignancy with high accuracy and consistency.
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29
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Fitzgerald AJ, Tie X, Hackmann MJ, Cense B, Gibson AP, Wallace VP. Co-registered combined OCT and THz imaging to extract depth and refractive index of a tissue-equivalent test object. BIOMEDICAL OPTICS EXPRESS 2020; 11:1417-1431. [PMID: 32206419 PMCID: PMC7075603 DOI: 10.1364/boe.378506] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 05/10/2023]
Abstract
Terahertz (THz) imaging and optical coherence tomography (OCT) provide complementary information with similar length scales. In addition to OCT's extensive use in ophthalmology, both methods have shown some promise for other medical applications and non-destructive testing. In this paper, we present an iterative algorithm that combines the information from OCT and THz imaging at two different measurement locations within an object to determine both the depth of the reflecting layers at the two locations and the unknown refractive index of the medium for both the OCT wavelengths and THz frequencies. We validate this algorithm using a silicone test object with embedded layers and show that the depths and refractive index values obtained from the algorithm agreed with the measured values to within 3.3%. We further demonstrate for the first time that OCT and THz images can be co-registered and aligned using unsupervised image registration. Hence we show that a combined OCT/THz system can provide unique information beyond the capability of the separate modalities alone, with possible applications in the medical, industrial and pharmaceutical sectors.
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Affiliation(s)
- A. J. Fitzgerald
- Department of Physics, The University of Western Australia, Perth, Australia
| | - X. Tie
- Department of Medical Physics, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - M. J. Hackmann
- Optical+Biomedical Engineering Laboratory, Department of Electronic, Electrical and Computer Engineering, The University of Western Australia, Perth, Australia
| | - B. Cense
- Optical+Biomedical Engineering Laboratory, Department of Electronic, Electrical and Computer Engineering, The University of Western Australia, Perth, Australia
- Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - A. P. Gibson
- Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London, WC1E 6BT, UK
| | - V. P. Wallace
- Department of Physics, The University of Western Australia, Perth, Australia
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30
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Yao G, Duan D. High-resolution 3D tractography of fibrous tissue based on polarization-sensitive optical coherence tomography. Exp Biol Med (Maywood) 2020; 245:273-281. [PMID: 31813275 PMCID: PMC7370596 DOI: 10.1177/1535370219894332] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Fibrous tissues play important roles in many parts of the body. Their highly organized directional structure is essential in achieving their normal biomechanical and physiological functions. Disruption of the typical fiber organization in these tissues is often linked to pathological changes and disease progression. Tractography is a specialized imaging method that can reveal the detailed fiber architecture. Here, we review recent developments in high-resolution optical tractography using Jones matrix polarization-sensitive optical coherence tomography. We also illustrate the use of this new tractography technology for visualizing depth-resolved, three-dimensional fibrous structures and quantifying tissue damages in several major fibrous tissues.
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Affiliation(s)
- Gang Yao
- Department of Biomedical, Biological & Chemical Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Dongsheng Duan
- Department of Molecular Microbiology and Immunology, School of Medicine, University of Missouri, Columbia, MO 65211, USA
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31
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Li Q, Karnowski K, Untracht G, Noble PB, Cense B, Villiger M, Sampson DD. Vectorial birefringence imaging by optical coherence microscopy for assessing fibrillar microstructures in the cornea and limbus. BIOMEDICAL OPTICS EXPRESS 2020; 11:1122-1138. [PMID: 32206403 PMCID: PMC7041478 DOI: 10.1364/boe.382755] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/29/2019] [Accepted: 01/06/2020] [Indexed: 05/03/2023]
Abstract
The organization of fibrillar tissue on the micrometer scale carries direct implications for health and disease but remains difficult to assess in vivo. Polarization-sensitive optical coherence tomography measures birefringence, which relates to the microscopic arrangement of fibrillar tissue components. Here, we demonstrate a critical improvement in leveraging this contrast mechanism by employing the improved spatial resolution of focus-extended optical coherence microscopy (1.4 µm axially in air and 1.6 µm laterally, over more than 70 µm depth of field). Vectorial birefringence imaging of sheep cornea ex vivo reveals its lamellar organization into thin sections with distinct local optic axis orientations, paving the way to resolving similar features in vivo.
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Affiliation(s)
- Qingyun Li
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
| | - Karol Karnowski
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Gavrielle Untracht
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
| | - Peter B. Noble
- School of Human Sciences, The University of Western Australia, Perth, WA 6009, Australia
| | - Barry Cense
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
| | - Martin Villiger
- Wellman Center for Photomedicine, Harvard Medical School and Massachusetts General Hospital, Boston, MA 02114, USA
| | - David D. Sampson
- Optical+Biomedical Engineering Laboratory, Department of Electrical, Electronic & Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia
- Surrey Biophotonics, School of Physics and School of Biosciences and Medicine, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
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32
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Control of the temporal and polarization response of a multimode fiber. Nat Commun 2019; 10:5085. [PMID: 31704923 PMCID: PMC6841946 DOI: 10.1038/s41467-019-13059-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022] Open
Abstract
Control of the spatial and temporal properties of light propagating in disordered media have been demonstrated over the last decade using spatial light modulators. Most of the previous studies demonstrated spatial focusing to the speckle grain size, and manipulation of the temporal properties of the achieved focus. In this work, we demonstrate an approach to control the total temporal impulse response, not only at a single speckle grain but over all spatial degrees of freedom (spatial and polarization modes) at any arbitrary delay time through a multimode fiber. Global enhancement or suppression of the total light intensity exiting a multimode fibre is shown for arbitrary delays and polarization states. This work could benefit to applications that require pulse delivery in disordered media.
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33
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McLean JP, Gan Y, Lye TH, Qu D, Lu HH, Hendon CP. High-speed collagen fiber modeling and orientation quantification for optical coherence tomography imaging. OPTICS EXPRESS 2019; 27:14457-14471. [PMID: 31163895 PMCID: PMC6825605 DOI: 10.1364/oe.27.014457] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 05/03/2023]
Abstract
Quantifying collagen fiber architecture has clinical and scientific relevance across a variety of tissue types and adds functionality to otherwise largely qualitative imaging modalities. Optical coherence tomography (OCT) is uniquely suited for this task due to its ability to capture the collagen microstructure over larger fields of view than traditional microscopy. Existing image processing techniques for quantifying fiber architecture, while accurate and effective, are very slow for processing large datasets and tend to lack structural specificity. We describe here a computationally efficient method for quantifying and visualizing collagen fiber organization. The algorithm is demonstrated on swine atria, bovine anterior cruciate ligament, and human cervical tissue samples. Additionally, we show an improved performance for images with crimped fiber textures and low signal to noise when compared to similar methods.
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Affiliation(s)
- James P. McLean
- Electrical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
| | - Yu Gan
- Electrical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
| | - Theresa H. Lye
- Electrical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
| | - Dovina Qu
- Biomedical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
| | - Helen H. Lu
- Biomedical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
| | - Christine P. Hendon
- Electrical Engineering, Fu Foundation School of Engineering and Applied Science, Columbia University, 1300 West 120th Street, New York, NY 10025,
USA
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34
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Podoleanu A, Izatt J, Lumbroso B, Pircher M, Rosen R, Weitz R. Progress in Multimodal En Face Imaging: feature introduction. BIOMEDICAL OPTICS EXPRESS 2019; 10:2135-2140. [PMID: 31086718 PMCID: PMC6484991 DOI: 10.1364/boe.10.002135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Indexed: 06/09/2023]
Abstract
This feature issue contains papers that report on the most recent advances in the field of en face optical coherence tomography (OCT) and of combinations of modalities facilitated by the en face view. Hardware configurations for delivery of en face OCT images are described as well as specific signal and image processing techniques tailored to deliver relevant clinical diagnoses. The value of the en face perspective for enabling multimodality is illustrated by several combination modalities.
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